I have a JS script that does some URL rewriting (via setting context variable for target.url). The script is straightforward. I'll be specific and won't leave anything out. It strips a part of the path to build the hostname.
Example:
https://api.stuff.com/customer1/items/123
rewrites to:
https://customer1.stuff.com/items/123
This has been working for the last year. However, for the last 2 months, I've been seeing weird behavior. Intermittently, a request to customer1 would get the response of a request to customer2 (I know this because the Host header of the response is that of customer2.stuff.com).
There is no response caching, so Apigee would be "stateless" as far as I know. It's just a straightforward rewrite. I do not store any of the names on Apigee or the rewrite script. So how would a request to customer1 know of a customer2?
What's even weirder is that based on the response headers coming back, the response is from a few days before. So I don't think it's a race condition/concurrency issue. I've put a lot of traffic through but cannot reproduce on-demand. It's rare, but it happens.
Any thoughts?
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